1. PG & Research Department of Chemistry, Dr Ambedkar Government Arts College (Autonomous), Vyasarpadi, Chennai, India
2. PG & Research Department of Chemistry, Government Arts College for Men (Autonomous), Nandanam, Chennai, India
3. PG & Research Department of Chemistry, Madras Christian College (Autonomous), Tambaram, Chennai, India
4. Department of Mechanical, Robotics and Energy Engineering, Dongguk University–Seoul, Pil-dong, Jung-gu, 04620 Seoul, Republic of Korea
5. Department of Chemistry, Theivanai Ammal College for Women (Autonomous), Affiliated to the Annamalai University, Chennai, India